Browse Forums Landscape & Garden Design Re: Ideas to drain water away from house 18Jul 14, 2010 11:43 pm Hi You will probably find that the stormwater pipe that is installed around your house has no fall. This is a common problem when 90mm stormwater pipe is installed by some plumbers. The 90mm stormwater pipe is prone to being squashed after installation and sometimes can be completely flat especially in clay areas. The only way to test to see if it is not completely flat is place a hose down the pipe and see how fast the water comes out at the kerb. Regards Shane Grab a hose, insert it at the top of the inlet/down pipe and turn the water on and see where the water is escaping from. Then you'll know. 3 6343 I've got a challenge here. Background is the builder has cut too deep for the slab and the slab is now below the very substantial retaining wall. It's failed occupancy… 0 16473 Yeah mine about 9 metres long and 8 wide with slope of 25% at one point but the end point of the outlet is past the side of garage and if he concretes allowing for… 4 3567 |